mirror of
https://github.com/qelectrotech/qelectrotech-source-mirror.git
synced 2025-09-13 20:23:04 +02:00
433ebc7158
git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@2792 bfdf4180-ca20-0410-9c96-a3a8aa849046
98 lines
3.5 KiB
C++
98 lines
3.5 KiB
C++
/*
|
|
Copyright 2006-2014 The QElectroTech Team
|
|
This file is part of QElectroTech.
|
|
|
|
QElectroTech is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
QElectroTech is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with QElectroTech. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#ifndef MOVE_ELEMENTS_HANDLER_H
|
|
#define MOVE_ELEMENTS_HANDLER_H
|
|
#include <QObject>
|
|
#include "qet.h"
|
|
class ElementDefinition;
|
|
class ElementsCategory;
|
|
/**
|
|
This class defines the minimum interface required to implement an object able
|
|
to handle a move/copy operation among elements collections. This kind of
|
|
objects is typically useful in the move() and copy() method of the
|
|
ElementDefinition and ElementsCategory classes. These methods simply rely on
|
|
answers provided by an instance of this class as soon as they encounter
|
|
typical move/copy problems, such as conflicts or permission issues.
|
|
|
|
For instance, when copying a particular element to a given category, that
|
|
element may already exist in the target category. It is then possible either
|
|
to erase the target element, change the target name or cancel the operation.
|
|
There is no systematic or calculable answer to this kind of questions, hence
|
|
the rational to delegate the decision process to a dedicated "Strategy" object.
|
|
|
|
All we know from this object is the fact it implements the interface defined
|
|
below. It is then free to create complicated dialogs to ask a user what to do
|
|
or even to pick a random decision.
|
|
|
|
@see ElementsCategory
|
|
@see ElementDefinition
|
|
*/
|
|
class MoveElementsHandler : public QObject {
|
|
Q_OBJECT
|
|
// constructors, destructor
|
|
public:
|
|
MoveElementsHandler(QObject * = 0) {};
|
|
virtual ~MoveElementsHandler() {};
|
|
private:
|
|
MoveElementsHandler(const MoveElementsHandler &);
|
|
|
|
// methods
|
|
public:
|
|
/**
|
|
@return what to do if the target category already exists
|
|
*/
|
|
virtual QET::Action categoryAlreadyExists(ElementsCategory *src, ElementsCategory *dst) = 0;
|
|
/**
|
|
@return what to do if the target element already exists
|
|
*/
|
|
virtual QET::Action elementAlreadyExists(ElementDefinition *src, ElementDefinition *dst) = 0;
|
|
|
|
/**
|
|
@return what to do if a category is not readable
|
|
*/
|
|
virtual QET::Action categoryIsNotReadable(ElementsCategory *) = 0;
|
|
/**
|
|
@return what to do if an element is not readable
|
|
*/
|
|
virtual QET::Action elementIsNotReadable(ElementDefinition *) = 0;
|
|
|
|
/**
|
|
@return what to do if the target category is not writable
|
|
*/
|
|
virtual QET::Action categoryIsNotWritable(ElementsCategory *) = 0;
|
|
/**
|
|
@return what to do if the target element is not writable
|
|
*/
|
|
virtual QET::Action elementIsNotWritable(ElementDefinition *) = 0;
|
|
|
|
/**
|
|
@return what to do when an error, described by the provided QString, occurs in relation with the given elements category.
|
|
*/
|
|
virtual QET::Action errorWithACategory(ElementsCategory *, const QString &) = 0;
|
|
/**
|
|
@return what to do when an error, described by the provided QString, occurs in relation with the given element.
|
|
*/
|
|
virtual QET::Action errorWithAnElement(ElementDefinition *, const QString &) = 0;
|
|
|
|
/**
|
|
@return the name to be used along with the latest QET::Rename answer
|
|
*/
|
|
virtual QString nameForRenamingOperation() = 0;
|
|
};
|
|
#endif
|